BATCH PREPARATION METHOD FOR ESTER-BASED MATERIAL

The present invention provides a method for preparing an ester-based material, the method including a step in which in a batch reactor, under a catalyst, at least one polycarboxylic acid selected from the group consisting of a terephthalic acid, a phthalic acid, an isophthalic acid, a cyclohexane di...

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Bibliographic Details
Main Authors KIM, Eun Suk, KIM, Hyun Kyu, MOON, Jeong Ju, HEO, Yun Gon
Format Patent
LanguageEnglish
French
German
Published 02.08.2023
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Summary:The present invention provides a method for preparing an ester-based material, the method including a step in which in a batch reactor, under a catalyst, at least one polycarboxylic acid selected from the group consisting of a terephthalic acid, a phthalic acid, an isophthalic acid, a cyclohexane dicarboxylic acid, a cyclohexane tricarboxylic acid, a trimellitic acid, and citric acid reacts with at least one mono-alcohol having 3 to 12 alkyl carbon atoms, wherein pressure in the reactor is configured such that the pressure at the early stage is 0.3 barg to 1.0 barg and the pressure at the latter stage is 0 barg to 0.5 barg, the pressure at the early stage being greater than the pressure at the latter stage, and the early and latter stages are divided based on any one of the time points when reaction conversion rate is 30% to 90%, and when the method is applied, the productivity of an ester-based material may increase and energy consumption in processes may be reduced.
Bibliography:Application Number: EP20210872879